U.S. Customs and Border Protection agents stand in southbound lanes next to a construction site where a scaffolding collapsed at the San Ysidro Port of Entry in San Diego Wednesday, Sept. 14, 2011. ... more 
U.S. Customs and Border Protection agents stand in southbound lanes next to a construction site where a scaffolding collapsed at the San Ysidro Port of Entry in San Diego Wednesday, Sept. 14, 2011. Three people have been taken to hospitals after construction scaffolding collapsed on cars at the nation's busiest border crossing connecting San Diego and Tijuana, Mexico. (AP Photo/Denis Poroy) less 
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Associated Press | Photo By Denis Poroy
Wed, Sep 14, 2011 5:21 PM EDT